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In this work, we explore the difficulty of improving hand-crafted rules in chat-oriented dialogue systems. We first created an initial rule set in artificial intelligence markup language and revised it through an iterative cycle. Then, we tested the initial and revised rule sets by using human participants. The dialogue experiment showed that, despite the intensive revision process, the overall performance...
The development of open-domain conversational systems remains difficult since user utterances are widely varied for such systems to respond appropriately. To address this is- sue, previous research has retrieved sentences from the web as system utterances by shallow sentence matching with user utterances. However, since the retrieved sentences include the inherent contexts of the document in which...
This study assessed the wettability of cellular surface with noncontact meniscus manipulation under a microscope. The surface of culture medium covered on cells was manipulated by air-jet and the meniscus of culture medium was generated. The movement of meniscus was monitored with a microscope. The shape of interface between culture medium and air on the cells was different from the part of cells.
This paper proposes a HMM-based user's information demand estimation model for autonomous informational assistance robots to avoid providing information prematurely. The model estimates the user's implicit information demands by predicting a user's next information request using user's head movements. Through a word-association quiz-dialog experiment, our model demonstrated superior prediction performance...
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